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公开(公告)号：US12114902B2
公开(公告)日：2024-10-15
申请号：US17124975
申请日：2020-12-17
CPC分类号： A61B17/7076 , A61B17/7032 , A61B2017/564
摘要： An instrument is configured for use with a receiving part defining a recess for receiving a rod to connect the rod to a bone anchoring element. The instrument includes a tube having a first end and a second end, and defining a coaxial internal channel that opens towards the first and second ends, and at least one protruding portion monolithically formed with the tube that is engageable with the recess of the receiving part to prevent rotational movement of the tube relative to the receiving part. The first end of the tube forms a closed ring. The at least one protruding portion has a first region that extends radially outwardly from an outer surface of the tube at the first end and a second region that extends axially away from the first end in a direction opposite the second end.
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公开(公告)号：US12089837B2
公开(公告)日：2024-09-17
申请号：US18144716
申请日：2023-05-08
发明人： Lutz Biedermann , Timo Biedermann , Achim Zipse , Gael Dreher
IPC分类号： A61B17/064 , A61B17/068 , A61B17/08 , A61B17/80 , A61B17/00
CPC分类号： A61B17/0642 , A61B17/064 , A61B17/0682 , A61B17/083 , A61B17/809 , A61B2017/0053 , A61B2017/00858 , A61B2017/00867 , A61B2017/0645
摘要： A surgical staple insertion system for compressing bone fragments includes a staple and an insertion tool. The staple has first and second legs and an elastically deformable bridge monolithically formed with the first and second legs. In a relaxed configuration, the free ends of the first and second legs are positioned closer to one another than are portions of the first and second legs connected to the bridge. The insertion tool retains the bridge in an elastically deformed configuration with the legs positioned relatively farther apart from one another during at least portion of the step of implantation of the staple. Then, the insertion tool is released from the staple so that the bone fragments between the legs are subject to compression.
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公开(公告)号：US12042195B2
公开(公告)日：2024-07-23
申请号：US17407036
申请日：2021-08-19
发明人： Lutz Biedermann , Wilfried Matthis
CPC分类号： A61B17/844 , A61B17/864 , A61B17/866 , A61B17/8685 , A61B17/7058 , A61B17/80 , A61B17/8615 , A61B17/862 , A61B17/8635 , A61B17/869 , A61B17/8805
摘要： A bone anchor includes an anchor member including a first material, and having a tubular section extending along a longitudinal axis, a region configured to expand radially outwards from the longitudinal axis, and a bone engagement structure projecting from at least a portion of the expandable region of the tubular section, and a core member including a second material, and configured for insertion into and connection to the anchor member. When the core member is in the anchor member and is actuated relative to the anchor member, the tubular section is adjustable between a first position where the expandable region of the tubular member has a first length and a first maximum diameter, to a second position where the expandable region of the tubular member has a length shorter than the first length and a maximum diameter greater than the first maximum diameter.
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公开(公告)号：US11937853B2
公开(公告)日：2024-03-26
申请号：US17466319
申请日：2021-09-03
发明人： Timo Biedermann , Wilfried Matthis
IPC分类号： A61B17/70
CPC分类号： A61B17/7037 , A61B17/7034 , A61B17/7035 , A61B17/708 , A61B17/7085 , A61B17/7086
摘要： A polyaxial bone anchoring device includes a receiving part with two legs defining a recess for receiving a rod and a pressure member for exerting pressure on a head of a bone anchoring element in the receiving part, the pressure member having an engagement portion. The engagement portion can extend at least partially into a leg and is directly engageable from outside the bone anchoring device to move the engagement portion axially for adjusting the pressure member from a non-locking position where the head is pivotable to a locking position where the head is clamped. When the pressure member is in the locking position and the engagement portion is free from any outside axial forces, a first contact surface of the receiving part cooperates with a second contact surface of the pressure member to hold the pressure member in the locking position.
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公开(公告)号：US11925396B2
公开(公告)日：2024-03-12
申请号：US18076811
申请日：2022-12-07
发明人： Markku Biedermann
CPC分类号： A61B17/8057 , A61B17/8042 , A61B17/808 , A61B17/8605 , A61B17/861 , A61B17/8615 , A61B17/8875 , A61B17/8877 , A61B17/8033 , F16B23/0007 , F16B23/003 , F16B23/0061
摘要： A tool adapted for use with a bone plate assembly includes a driver with an engagement portion configured to engage a locking element, and a tubular holder. The driver may be configured to extend with the engagement portion through the tubular holder, and may be axially movable and rotatable within the holder. The holder may have a radial slot adapted for insertion of the locking element. The holder may include a portion with an internal thread for cooperation with an external thread of the locking element. The locking element may be used with a polyaxial bone anchor.
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公开(公告)号：US11813002B2
公开(公告)日：2023-11-14
申请号：US17143606
申请日：2021-01-07
IPC分类号： A61B17/70
CPC分类号： A61B17/7082 , A61B17/7076
摘要： A device for placing a receiving part of a bone anchoring device onto a head of a bone anchoring element includes a holding portion, a collet configured to be held by the holding portion, the collet having a tubular body extending along a longitudinal axis, and a distal end portion configured to be flexibly expanded and compressed in a radial direction, and a plunger configured to be positioned in the collet. The collet is movable axially relative to the plunger between a first position wherein the distal end portion of the collet is configured to have a first width in a first radial direction and the plunger prevents the distal end portion from assuming a width less than the first width, and a second position wherein the distal end portion of the collet is radially compressible to a second width that is less than the first width.
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公开(公告)号：US11812999B2
公开(公告)日：2023-11-14
申请号：US17332731
申请日：2021-05-27
发明人： Lutz Biedermann , Bernd Fischer , Wilfried Matthis
CPC分类号： A61B17/7037 , A61B17/7032 , A61B2017/00477
摘要： A coupling assembly for coupling a rod to a bone anchoring element is provided, wherein the coupling assembly includes a receiving part having a first end, a second end, a central axis extending through the first end and second end, an accommodation space for accommodating a head of an anchoring element, a bore extending from the accommodation space to the first end, and a recess for receiving a rod. The accommodation space has an opening at the second end sized to permit insertion of a head of the bone anchoring element. The coupling assembly further includes a retainer element configured to be positioned at least partially in the accommodation space and being radially expandable and/or compressible to allow retaining a head inserted through the opening. The retainer element is held in position adjacent the opening by an engagement structure provided at or in the accommodation space. The coupling assembly further includes a locking element configured to be arranged at least partially in the accommodation space. The locking element is movable from a first position, in which the retainer element is allowed to expand and release an inserted head, to a second position, in which radial expansion of the retainer element is hindered to prevent release of an inserted head. When the locking element is in the second position, a head of an anchoring element can be locked by exertion of a pressure force directly onto the head to press the head against the retainer element.
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公开(公告)号：US20230329760A1
公开(公告)日：2023-10-19
申请号：US18303365
申请日：2023-04-19
发明人： Timo Biedermann , Heiko Koller
IPC分类号： A61B17/70
CPC分类号： A61B17/705 , A61B17/7025
摘要： A rod system, in particular, for the spine, includes a first rod, a second rod, and a connector for connecting the first rod and the second rod. The connector includes a main body defining a first rod seat configured to hold the first rod in a fixed manner and a second rod seat configured to accommodate a second rod, and a fixation member and a closure member that are interchangeably mountable to the main body. When the fixation member is mounted to the main body, the fixation member is engageable with the portion of the second rod to hold the second rod in a fixed manner relative to the main bod, while when the closure member is mounted to the main body, the closure member is configured to hold the second rod to the main body in a slidable manner.
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公开(公告)号：US20230320756A1
公开(公告)日：2023-10-12
申请号：US18301136
申请日：2023-04-14
发明人： Timo BIEDERMANN , Bernd FISCHER
CPC分类号： A61B17/7008 , A61B17/7032 , A61B17/8605 , A61B17/8625 , A61B2017/00477
摘要： A coupling device for coupling a rod to a bone anchor includes a receiving part configured to receive a head of the bone anchor, the receiving part having a first end and a second end, a central axis that extends between the first and second ends, and two legs at the first end that define a recess extending in a longitudinal direction transverse to the central axis for receiving the rod, and a monolithic pressure member positionable in the receiving part, the pressure member including a rod support surface and an engagement portion to adjust the pressure member to exert pressure on the head. The engagement portion is positioned farther radially from the central axis in the longitudinal direction than a first portion of the rod support surface, and extends closer axially to the first end of the receiving part than the entire first portion of the rod support surface.
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10.发明公开公开(公告)号：US20230320755A1
公开(公告)日：2023-10-12
申请号：US18298597
申请日：2023-04-11
IPC分类号： A61B17/68
CPC分类号： A61B17/68 , A61B2017/564
摘要： A coupling device includes a receiving part with an accommodation space for accommodating a head of a bone anchoring element, an opening, and a recess forming two legs for receiving a rod, and a pressure member arranged at least partially in the accommodation space. The pressure member is adjustable from a first configuration where a topmost end of the pressure member is at a first axial position and the head is pivotable in the accommodation space to a second configuration where the topmost end of the pressure member is at a second axial position below the first axial position and the pressure member provisionally lock the heads. At the second configuration, a latching connection is formed to prevent the pressure member from being adjusted back towards the first configuration. The latching connection is releasable to adjust the pressure member from the second configuration back towards the first configuration.
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